高等学校化学学报

高等学校化学学报 ›› 1988, Vol. 9 ›› Issue (4): 384.

• 论文 • 上一篇    下一篇

正丁基锂四氢呋喃引发α-甲基苯乙烯阴离子平衡聚合动力学及反应机理研究

梁良, 郭少华, 应圣康   

  1. 华东化工学院高分子材料研究所
  • 收稿日期:1986-10-03 出版日期:1988-04-24 发布日期:1988-04-24
  • 通讯作者: 梁良
  • 基金资助:

    中国自然科学基金

Studies on Kinetics and Mechanism of the Anionic Equilibrium Polymerization of α-Methylstyrene Initiated by n-Butyllithium/Tetrahydrofuran

Liang Liang, Guo Shaohua, Ying Shengkang   

  1. Institute of Polymer Materials, East China University of Chemical Technology, Shanghai
  • Received:1986-10-03 Online:1988-04-24 Published:1988-04-24

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摘要： 本文研究了以正丁基锂为引发剂,四氢呋喃为添加剂,环己烷为溶剂中的α-甲基苯乙烯阴离子平衡聚合动力学。讨论了体系中的反应活性种;提出了聚合机理;得到了聚合温度为20℃时的平衡单体浓度与活性种速率常数及添加剂浓度之间的关系式。

关键词: 平衡聚合动力学, 反应活性种, 聚合机理

Abstract: The kinetics of anionic equilibrium polymerization of α-methylstyrene in the cyclohexane solution, with n-butyllithium as an initiator and tetrahydrofuran as an additive, was investigated. In the present paper.the reactive species in the system are discussed and the mechanism of polymerization is postulated. The relationships of equilibrium monomer concentration with respact to the rate constants of reactive species and the concentration of additive are obtained at 20℃.

Key words: Kinetics of equilibrium polymerization. Reactive species, Mecha-nism of polymerization

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